Merge pull request #1 from kunalrisaanva/k-code

fix: update server listen method to include host and improve logging message

feat: replace fast-jwt with jsonwebtoken for token generation and update JWT verification logic

chore: update dependencies in package.json and package-lock.json, replacing fastify-jwt with fast-jwt

chore: specify Node.js engine version in package.json and package-lock.json

feat: add reusable UI components for Textarea, Input, Button, and Card with mouse interaction effects

feat: add LensDemo component for enhanced image interaction and update product page rendering

refactor: clean up cart and product models, enhance response utility, and implement authentication middleware

update image domains in next.config.mjs and refine product card rendering in Home component

add utility functions and new components for enhanced UI features

update main entry point in backend package.json and clean up author field in fronted package.json

comment out Firebase initialization code in firebase.js

update firebase service account file path for deployment

refactor firebase initialization to read service account from environment variable for deployment

add nodemon as a development dependency